[2/4] riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization

Commit Message

Alexandre Ghiti Feb. 8, 2021, 7:30 p.m. UTC

Instead of hardcoding memory initialization to 0, use KASAN_SHADOW_INIT.

Signed-off-by: Alexandre Ghiti <[e-mail]>
---
 arch/riscv/mm/kasan_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/riscv/mm/kasan_init.c b/arch/riscv/mm/kasan_init.c
index a8a2ffd9114a..7bbe09416a2e 100644
--- a/arch/riscv/mm/kasan_init.c
+++ b/arch/riscv/mm/kasan_init.c
@@ -80,7 +80,7 @@  static void __init populate(void *start, void *end)
 				__pgprot(_PAGE_TABLE)));
 
 	local_flush_tlb_all();
-	memset(start, 0, end - start);
+	memset(start, KASAN_SHADOW_INIT, end - start);
 }
 
 void __init kasan_init(void)
@@ -108,6 +108,6 @@  void __init kasan_init(void)
 			       __pgprot(_PAGE_PRESENT | _PAGE_READ |
 					_PAGE_ACCESSED)));
 
-	memset(kasan_early_shadow_page, 0, PAGE_SIZE);
+	memset(kasan_early_shadow_page, KASAN_SHADOW_INIT, PAGE_SIZE);
 	init_task.kasan_depth = 0;
 }